M4maths Previous Puzzles

28 Sep 2009 Next Number?

Next number of the sequence 1, 4, 13, 40 ...... will be

OPtion

1) 94
2) 64
3) 49
4) 56
5) 121
6) 157
7) 164
8) 136
9) 78
10) 144

Solution

This sequence is 1, 1+3, 1+3+3^2, 1+3+3^2+3^3, 1+3+3^2+3^3+3^4

Correct Option: 5 Best Solution (0)